2001 BMW 525i Oil filter

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Page 341 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
< 6-cylinder models: Remove intake manifold to access  oil 
pressure  switch 
(arrow). 
V-8 models: Oil  pressure warning switch (arrow) is lo

Page 358 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
.- 
ignition System 
Disabling ignition system 
The ignition system operates in a lethal voltage range and 
should be disabled  any time  engi

Page 362 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
I Ignition System 
Camshaft position sensors 
The camshaft position sensors are used by the englne man- 
agement system  for VANOS control,  s

Page 403 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
130-1 3 
Fuel Injection I 
< Unplug harness  connector (arrow) from sensor. 
CAUTION- 
Be sure ignition  is OFF before disconnecting  or recon

Page 408 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
130-1 8 
1 Fuel injection Secondary air injection 
1. Secondary air pump  (in right 
front  wheel  housing) 
2. Secondary  air vacuum  vent 
v

Page 417 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
- 
Fuel Injection 
ECM relay, testing 
The engine  control  module (ECM) relay is energized  via the 
ECM  and supplies battery  positive 
(Bc

Page 423 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
Fuel lniection I 
4 Remove  complete  air filter  housing: 
Disconnect electrical  harness connector  on mass air flow 
sensor 
(A). 
Disconne

Page 426 of 1002

BMW 525i 2001 E39 Workshop Manual Downloaded from www.Manualslib.com manuals search engine 
130-36 
[~uel Injection 
4 Remove nuts and bolts (arrows) retaining wiring  harness to 
throttle  housing. 
- Working  at throttle  housing, t
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